function openvbx_mail($recipient, $subject, $template, $maildata = array())
{
    $ci = &get_instance();

    $from_email = $ci->settings->get('from_email', $ci->tenant->id);
    if(empty($from_email))
    {
        $domain = $ci->config->item('server_name');
        $from_email = "$from <do-not-reply@$domain>";
    }

    $headers = 'From: '.$from_email."\r\n";
    $headers .= 'Reply-To: '.$from_email."\r\n";
    $headers .= 'Return-Path: '.$from_email."\r\n";
    $headers .= 'User-Agent: OpenVBX-'.OpenVBX::version();

    $message = $ci->load->view('emails/'.$template, $maildata, true);

    log_message('debug', 'MAILING -- to: '.$recipient.' -- body: '.$message);

    log_message('error', mail);

    return mail($recipient, '[OpenVBX] '.$subject, $message, $headers);
}